<template>
  <div>
    <!-- 面包屑 -->
    <bread :bread="$route.meta.bread" />

    <!-- 卡片视图 -->
    <el-card>
      <!-- 添加角色按钮区域 -->
      <el-row>
        <el-col>
          <el-button type="primary" @click="roleDialogVisible = true"
            >添加角色</el-button
          >
        </el-col>
      </el-row>

      <!-- 角色列表区域 -->
      <el-table :data="rolelist" border stripe style="margin-top: 10px">
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 渲染一级权限 -->
              <el-col :span="5">
                <el-tag closable @close="removeRightById(scope.row, item1.id)">
                  {{ item1.authName }}
                </el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>

              <!-- 渲染二级和三级权限 -->
              <el-col :span="19">
                <!-- 通过for循环嵌套 渲染二级权限 -->
                <el-row
                  :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
            <!-- <pre>
                    {{ scope.row }}
                </pre
            > -->
          </template>
        </el-table-column>

        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="editRoleDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeRoles(scope.row.id)"
              >删除</el-button
            >
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>

    <!-- 分配权限的对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="SetRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <!-- 树形控件 -->
      <el-tree
        :data="rightslist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
        ref="treeRef"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="SetRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 添加角色的对话框 -->
    <el-dialog
      title="添加角色"
      :visible.sync="roleDialogVisible"
      width="50%"
      @close="roleDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="roleForm"
        :rules="roleFormRules"
        ref="roleFormRef"
        label-width="80px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="roleForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="roleForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="roleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRole">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改角色的对话框 -->
    <el-dialog
      title="修改角色"
      :visible.sync="editVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editRulForm"
        :rules="editRulFormRules"
        ref="editRulFormRef"
        label-width="80px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="editRulForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="editRulForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editVisible = false">取 消</el-button>
        <el-button type="primary" @click="editRolesInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import bread from '../common/bread'
import role from '../../API/roles'
export default {
  name: '',
  components: {
    bread
  },
  data() {
    return {
      // 所有角色列表数据
      rolelist: [],

      // 控制分配权限对话框的显示与隐藏
      SetRightDialogVisible: false,
      // 所有权限的数据
      rightslist: [],

      // 树形控件的属性绑定对象
      treeProps: {
        label: 'authName',
        children: 'children'
      },

      // 默认选中的节点的id值
      defKeys: [],

      // 当前即将分配权限的id
      roleId: '',

      // 控制添加角色对话框的显示与隐藏
      roleDialogVisible: false,

      // 添加角色的表单数据
      roleForm: {
        roleName: '',
        roleDesc: ''
      },

      // 添加角色表单的验证规则
      roleFormRules: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' },
          {
            min: 2,
            max: 8,
            message: '长度在 2 到 8 个字符',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' }
        ]
      },

      // 编辑角色对话框的显示隐藏
      editVisible: false,

      // 查询到的用户信息对象
      editRulForm: {
        roleName: '',
        roleDesc: '',
        roleId: ''
      },

      // 修改角色的验证规则对象
      editRulFormRules: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' },
          {
            min: 2,
            max: 8,
            message: '长度在 2 到 8 个字符',
            trigger: 'blur'
          }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getRolesList()
  },
  mounted() {},
  methods: {
    // 获取所有角色的列表
    async getRolesList() {
      const { data: res } = await role.getRolesList()
      // this.$http.get('roles')

      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }

      this.rolelist = res.data

      console.log(this.rolelist)
    },

    // 根据id删除对应的权限
    async removeRightById(role, rightId) {
      // 弹框提示用户是否删除

      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch((err) => err)

      if (confirmResult !== 'confirm') {
        return this.$message.info('取消了删除')
      }
      const { data: res } = await role.deleteRoles(role.id,rightId)
      // this.$http.delete(
      //   `roles/${role.id}/rights/${rightId}`
      // )

      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败')
      }
      // this.getRolesList()
      role.children = res.data
      // console.log('确认了删除');
    },

    // 展示分配权限的对话框
    async showSetRightDialog(roles) {
      this.roleId = roles.id
      // 获取所有权限列表的数据
      const { data: res } = await role.showRight()
      // this.$http.get('rights/tree')

      if (res.meta.status !== 200) {
        return this.$message.error('获取权限数据失败')
      }
      // 把获取到的权限数据保存到 data中
      this.rightslist = res.data
      console.log(this.rightslist)

      // 递归获取三级节点的id
      this.getLeafKeys(role, this.defKeys)

      this.SetRightDialogVisible = true
    },

    // 通过递归的形式，获取角色下所有的三级权限的id，并保存到 defKeys 数组中
    getLeafKeys(node, arr) {
      if (!node.children) {
        // 如果当前node节点不包含children属性，则是三级节点
        return arr.push(node.id)
      }

      node.children.forEach((item) => this.getLeafKeys(item, arr))
    },

    // 监听分配权限对话框的关闭事件
    setRightDialogClosed() {
      this.defKeys = []
    },

    // 点击为角色分配权限
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]
      // console.log(keys);

      const idStr = keys.join(',')

      const { data: res } = await role.allRight(this.roleId,{rids: idStr})
      // this.$http.post(
      //   `roles/${this.roleId}/rights`,
      //   { rids: idStr }
      // )

      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败')
      }

      this.$message.success('分配权限成功')
      this.getRolesList()
      this.SetRightDialogVisible = false
    },

    // 监听添加角色对话框的关闭事件
    roleDialogClosed() {
      this.$refs.roleFormRef.resetFields() // 关闭对话框 重置表单
    },

    // 点击按钮添加新角色
    addRole() {
      this.$refs.roleFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return
        // 可以发起添加角色的请求
        const { data: res } = await role.addRole(this.roleForm)
        // this.$http.post('roles', this.roleForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加角色失败')
        }
        this.$message.success('添加角色成功')
        this.roleDialogVisible = false
        // 重新获取列表数据
        this.getRolesList()
      })
    },

    // 编辑角色的对话框
    async editRoleDialog(id) {
      // console.log(id);
      const { data: res } = await role.showRoles(id)
      // this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editRulForm = res.data
      this.editRulForm.roleId = res.data.roleId
      this.editVisible = true
    },

    // 监听修改角色对话框的关闭事件
    editDialogClosed() {
      this.$refs.editRulFormRef.resetFields()
    },

    // 修改角色信息提交
    editRolesInfo() {
      this.$refs.editRulFormRef.validate(async (valid) => {
        if (valid) {
          // console.log(valid);
          // console.log(this.editRulForm)
          // 发起修改角色请求
          const { data: res } = await role.editRoles(this.editRulForm.roleId,{
            roleName: this.editRulForm.roleName,
            roleDesc: this.editRulForm.roleDesc
          })
          // this.$http.put(
          //   'roles/' + this.editRulForm.roleId,
          //   {
          //     roleName: this.editRulForm.roleName,
          //     roleDesc: this.editRulForm.roleDesc
          //   }
          // )
          console.log(res)
          if (res.meta.status !== 200) {
            return this.$message.error('更新角色信息失败')
          }
          this.editVisible = false
          this.getRolesList()
          this.$message.success('更新角色成功')
        }
      })
    },

    // 根据id删除对应的用户信息
    async removeRoles(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch((err) => err)

      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消了删除，则返回值为字符串  cancel

      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }

      const { data: res } = await role.removeRole(id)
      // this.$http.delete('roles/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }

      this.$message.success('删除用户成功')
      this.getRolesList()
    }
  },
  computed: {},
  watch: {}
}
</script>

<style lang="scss">
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>
